Philip Roy Hampton (born 5 October 1953) is a British businessman, the chairman of GlaxoSmithKline. Originally he joined RBS as the deputy chairman on 19 January 2009 and was promoted to chairman on 3 February the same year. He has previously held the chairman role at J Sainsbury plc, parent company of the Sainsbury's chain of supermarkets, and the role of group finance director of a number of blue chip companies including Lloyds Banking Group plc, BT Group plc, BG Group plc, British Gas plc and British Steel plc.[1] before becoming the first chairman of UK Financial Investments Limited in 2008, the post he left to join RBS.

Hampton was appointed chairman of J Sainsbury plc on 19 July 2004 to replace Sir Peter Davis. His appointment came at a significant time for the retailer; Davis had been forced out as chairman by shareholders due to an extremely generous bonus package despite his dubious performance as chairman and previously as CEO, another shareholder revolt in February 2004 had caused the company to abandon the appointment of Sir Ian Prosser as chairman and Justin King had been appointed chief executive in March 2004. Hampton was described by then BBC Business Editor Jeff Randall as "a well-respected City figure" and a "safe pair of hands". Under the King/Hampton leadership Sainsbury's regained some market share and in June 2006 reported its highest sales increase in four years.[5] In November 2009, David Tyler took over as chairman of Sainsbury's.

In December 2009, the board of RBS warned their major shareholder, the British public, that they would resign unless they were permitted to pay bonuses of £1.5bn to staff in its investment arm.[6] The matter received heavy criticism because it followed a £42bn taxpayer bailout of the banking system.

In January 2012, the board of RBS paid a bonus of £963,000 to Stephen Hester, the then chief executive. The Treasury permitted the payment because they feared Mr Hester and much of the board would have quit if the payment had been vetoed by the government as the majority shareholder.[7][8][9][10][11][12][13][14] Hampton made the decision to turn down his £1.4m bonus before the uproar over Stephen Hester's bonus.[15]